
for i = -2:0.04:2
    j = i+0.02;
    y1 = sqrt(1-(abs(i)-1)^2)+3;
    y2 = (acos(1-abs(j)));
    if y2<0
        y2 = 0;
    end
    y1 = y1*1024;
    y2 = y2*1024;
    y1 = floor(y1);
    y2 = floor(y2);
    y1d = dec2hex(y1)
    y2d = dec2hex(y2)
    a = sin((2*pi*i)/256)*2048+2048;
    a = floor(a); 
    d = dec2hex(a);
end